Add C++ utility classes for reading MetaModelica values (#10785)

OMCompiler/Compiler/CMakeLists.txt

@@ -1,6 +1,7 @@
 
 omc_add_subdirectory(runtime)
 omc_add_subdirectory(boot)
+omc_add_subdirectory(FrontEndCpp)
 
 
 # set(OMC_EXE ${PROJECT_SOURCE_DIR}/../build/bin/omc)
@@ -255,6 +256,7 @@ endif()
 target_link_libraries(OpenModelicaCompiler PUBLIC omc::parser)
 target_link_libraries(OpenModelicaCompiler PUBLIC omc::compiler::backendruntime)
 target_link_libraries(OpenModelicaCompiler PUBLIC omc::compiler::runtime)
+target_link_libraries(OpenModelicaCompiler PUBLIC omc::compiler::frontendcpp)
 target_link_libraries(OpenModelicaCompiler PUBLIC omc::simrt::runtime)
 
 # On Windows we need explicitly tell the dll to export all symbols. It is not so good

OMCompiler/Compiler/FrontEndCpp/CMakeLists.txt

@@ -0,0 +1,82 @@
+# Existence checks
+#################################################################################################
+
+# Some example portability checks. Add more just like this if you need more.
+# e.g this will define HAVE_TIME_H 1 if found or HAVE_TIME_H 0 otherwise
+omc_check_header_exists_and_define(time.h)
+# e.g this will define HAVE_CTIME_S 1 if found or HAVE_CTIME_S 0 otherwise
+omc_check_function_exists_and_define(ctime_s)
+omc_check_function_exists_and_define(ctime_r)
+
+
+
+# Libraries
+##################################################################################################
+set(OMC_FRONTEND_CPP_SOURCES
+    MetaModelica.cpp)
+
+
+# ######################################################################################################################
+# Library: omcruntime
+add_library(omcfrontendcpp STATIC)
+add_library(omc::compiler::frontendcpp ALIAS omcfrontendcpp)
+
+target_sources(omcfrontendcpp PRIVATE ${OMC_FRONTEND_CPP_SOURCES})
+
+target_link_libraries(omcfrontendcpp PUBLIC omc::simrt::runtime)
+
+target_include_directories(omcfrontendcpp PUBLIC ${CMAKE_CURRENT_SOURCE_DIR})
+
+set(CC ${CMAKE_C_COMPILER})
+set(CXX ${CMAKE_CXX_COMPILER})
+
+# For now assume mingw32-make is available here. It should be because it is what we use
+# to compile generated simulation code on Windows when omc is issuing the compilation.
+# This variable will substitute @ Autoconf.make.
+# Autoconf.make inturn (at least so far) is used to issue compilation of FMU sources.
+# For anything that is issued through SystemCall use this mingw32-make (instead of just 'make'
+# which is the MSYS make.) since the latter is not supposed to be used on Windows shells.
+# (systemCall uses 'cmd \c' to issue commands.)
+if (MINGW)
+  set(OMC_MAKE_EXE "mingw32-make")
+else()
+  set(OMC_MAKE_EXE "make")
+endif()
+
+set(OMC_CMAKE_EXE "${CMAKE_COMMAND}")
+
+if(MINGW)
+  set(CONFIG_OS "Windows_NT")
+
+  set(RT_LDFLAGS_GENERATED_CODE " -lOpenModelicaRuntimeC -lomcgc -lopenblas -lm -lpthread")
+  set(RT_LDFLAGS_GENERATED_CODE_SIM " -lSimulationRuntimeC -lOpenModelicaRuntimeC -lomcgc -lopenblas -lm -lpthread -lgfortran -lstdc++ ")
+  set(RT_LDFLAGS_GENERATED_CODE_SOURCE_FMU " -lopenblas -lm -lpthread ")
+  set(RT_LDFLAGS_GENERATED_CODE_SOURCE_FMU_STATIC "-Wl,-Bstatic -lSimulationRuntimeFMI -Wl,-Bdynamic -lopenblas -lm -lpthread -lgfortran -lstdc++ ")
+
+elseif(MSVC)
+  set(CONFIG_OS "Windows_NT")
+
+  set(RT_LDFLAGS_GENERATED_CODE " -lOpenModelicaRuntimeC -lomcgc -lopenblas -lm -lpthread")
+  set(RT_LDFLAGS_GENERATED_CODE_SIM " -lSimulationRuntimeC -lOpenModelicaRuntimeC -lomcgc -lopenblas -lm -lpthread -lgfortran -lstdc++ ")
+  set(RT_LDFLAGS_GENERATED_CODE_SOURCE_FMU " -lopenblas -lm -lpthread ")
+  set(RT_LDFLAGS_GENERATED_CODE_SOURCE_FMU_STATIC "-Wl,-Bstatic -lSimulationRuntimeFMI -Wl,-Bdynamic -lopenblas -lm -lpthread -lgfortran -lstdc++ ")
+
+elseif(APPLE)
+  set(CONFIG_OS "OSX")
+
+  set(RT_LDFLAGS_GENERATED_CODE " -lOpenModelicaRuntimeC -lomcgc -llapack -lblas -lm")
+  set(RT_LDFLAGS_GENERATED_CODE_SIM " -lSimulationRuntimeC -lOpenModelicaRuntimeC -lomcgc -llapack -lblas -lm")
+  set(RT_LDFLAGS_GENERATED_CODE_SOURCE_FMU " -llapack -lblas -lm")
+  set(RT_LDFLAGS_GENERATED_CODE_SOURCE_FMU_STATIC "-lSimulationRuntimeFMI -llapack -lblas -lm")
+
+elseif(UNIX AND NOT APPLE)
+  set(CONFIG_OS ${OMC_TARGET_SYSTEM_NAME})
+
+  set(RT_LDFLAGS_GENERATED_CODE " -lOpenModelicaRuntimeC -rdynamic")
+  set(RT_LDFLAGS_GENERATED_CODE_SIM " -lSimulationRuntimeC -lOpenModelicaRuntimeC -lomcgc -lstdc++ -rdynamic ")
+  set(RT_LDFLAGS_GENERATED_CODE_SOURCE_FMU " -rdynamic ")
+  set(RT_LDFLAGS_GENERATED_CODE_SOURCE_FMU_STATIC "-lstdc++ -rdynamic ")
+
+else()
+   message(FATAL_ERROR "Unknow system for OpenModelica simulation code generation and compilation. OpenModelica does not know how to compile and simulate simulation code on this configuration.")
+endif()